A low magnesium level is likely to result in which of the following complications?

A low magnesium level, or hypomagnesemia, is indeed strongly associated with muscle spasms. Magnesium plays a crucial role in neuromuscular function by helping regulate the contraction and relaxation of muscles. When magnesium levels are insufficient, it can lead to increased excitability of the neuromuscular junction, which in turn can cause involuntary contractions, muscle cramps, and spasms.

While other options may relate to magnesium levels in certain indirect ways, muscle spasms are the most direct and common complication specifically tied to low magnesium. Maintaining adequate magnesium levels is vital for overall muscle function, and deficiencies can lead to a range of muscle-related symptoms, highlighting the importance of this mineral in bodily homeostasis.